Joint or hinge for wind-shields.



v E. L. AGKERMAN. JOINT OR HINGE FOR WIND SHIELDS.

APPLICATION FILED JULY25', 1912.

1,121,576. Patented Dec. 15,1911.

Inn/dado? wmm- A mara/r06 Z. flelwwwa w EDWARD L. aoxnmvmiv, or DETROIT, ICHIGAN.

JOINT ORI'IING'E non WIND-SHIELDS.

ments in Joints or Hinges for; Wind-Shields,

of which the following is a specification, reference being had therein to the accompanying drawings. 1

The invention relates generally to windshields ofthe sectional type and more particularly to a friction hinge connection between the shield members, permitting relative adjustment between the parts.

It consists essentially in' the construction of the hinge and thepeculiar arrangement and combination of parts thereof and the various details of construction as more fully hereinafter set forth.

In the drawings: Figure 1 is a perspective view of an embodiment of my invention; Fig. 2 is a view in perspective of the parts of the-joint or hinge, detached; and Fig. 3 is a ilrrerticlal central section taken on line w-w of In the drawings just described A designates a suitable support on which the windshield is mounted; B is the lower-section of the shield and C the upper, and D are arm supports for the upper section C.

E represents the hinge connections between the arm supports and the lower section, the friction afforded by the joint being variable as and for the purpose hereinafter set forth. v j

The hinge is preferably of the following construction: Comprising a circular head F secured to the upper portion of the frame G of the lower section; a tubular bearing H carried by each arm, a friction member, preferably in the form of a disk; and. means for holding the parts in their assembled po- 'sitionthe preferred means for this purpose being the wing-bolt J.

Formed upon the tubular bearing member H interiorly thereof are conical bearing surfaces a and'b. The head F is likewise provided with a conical surface 0, adapted to engage one of the bearing surfaces on the tubular member; and it is further provided with a transverse slot 6 and a central aperture f interiorly screw-threaded.

The friction member I formed with a conical bearing surface d,

Specification of Letters'Patent.

Application filed July 25, 1912,. Serial No. 711,604.

is preferably- Patented Dec. 15, 191 1.

with a rib or projection 9 adapted to fit recess e, and a central opening h.

With the parts assembled, they are in the pos tion shown in Fig. 3, the wing-bolt en'-: gaging the openings in the head and friction member and thus uniting the parts and holding the respective conical bearing surthe faces lIl engagement, while the rib g in engaging its recess 6 prevents relative rotation between the members I and F and thereby increases the friction of the joint. For the purpose of holding movement after ad ustment is once effected, a nut-lock, of ny suitable typesuoh as i, 1s employed, interposed between the member I and the headof the screw or pivot.

With the construction described, it" will be obvious that as the members I and F are brought into engagement with their respective bearing surfaces upon the member H the desired friction will be produced, thus permitting the up er section of the shield to be shifted in t e position desired and maintained in said position against ordinary shocks and jars, while, at the same time, the friction is not so great but that the shield sections can be adjusted readily by the hand of the operator. ()n the other hand, if it is desired to positively lock the shield section in any position, this may be efiected by clamping the members of the joint or hinge tightly together,:through the agency of the wing-bolt. Thus the friction of the joint or hinge may be readily varied for the purpose desired.

While I have shown'the preferred form of joint it will be obvious that various-modithe bolt from" relative fications can be made without departing stance, the conlcal bearing surface on one of the joint members and the corresponding friction surface upon its complementary member might be omitted if desired,a1rd the joint would still afi'ord sufiicient tion for the purpose for which it is intended; likewise, in place of the particular means for effecting the adjustment bet-ween the joint members, other suitable means might be employed for performing the same function. I do not, therefore, desire to be limited to the exact construction shown, although I deem the same preferabl in use. i What I claim as my invention is: 1. In a friction hinge for sectional wind ment,

shields, the combination with a tubular bearing member attachable to one of the shield sectlons and having aconical bearing surface formed on one side thereof, of a circular head adapted to be carried by the complementary shield section, slotted transversely and having a conical face engaging one of the cone surfaces upon the tubular bearing, a disk formed with a conical periphery for engagement with the complementary cone surface upon the tubular member and having a projection-engaging the slot in the head member and interlocking the members against independent moveand a clamping bolt extending throughithe disk, and tubular bearings, and having a screw threaded engagement with the head member.

2. In a friction hinge for Wind shields, the combination With an unbroken tubular member formed internally With compile mentary conical bearing surfaces, of interlocking head and disk members upon opposite sides of the tubular member, held against relative rotation and having each a conical bearing surfaceengaging the corresponding cone surface upon said. tubular member, and means for aflecting the relative adjustment between the members to vary the-friction of the joint. I

In testimony whereof I afiix my signature in presence of two Witnesses.

' EDWARD L. ACKERMAN. Witnesses JAMES P. BARRY,

ADELAIDE I. AoAMs. 

